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谢丽杰,刘雪梅,王海滨,谢屹峰,刘宝刚,宋晓艳.含WB烧结硬质合金的组织结构和性能研究[J].稀有金属材料与工程(英文),2017,46(12):3825~3831.[Xie Lijie,Liu Xuemei,Wang Haibin,Xie Yifeng,Liu Baogang,Song Xiaoyan.Effect of addition of WB on the microstructure and properties of cemented carbides[J].Rare Metal Materials and Engineering,2017,46(12):3825~3831.]
Effect of addition of WB on the microstructure and properties of cemented carbides
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Received:September 26, 2016  Revised:February 08, 2017
DOI:
Key words: WB  WCoB  cemented carbide  hardness  wear resistance
Foundation item:北京市自然科学基金重点项目(2131001)
Author NameAffiliationE-mail
Xie Lijie College of Materials Science and Engineering,Beijing University of Technology 15650750961@163.com 
Liu Xuemei College of Materials Science and Engineering,Beijing University of Technology  
Wang Haibin College of Materials Science and Engineering,Beijing University of Technology  
Xie Yifeng Luoyang Golden Egret Geotools CO,LTD  
Liu Baogang Luoyang Golden Egret Geotools CO,LTD  
Song Xiaoyan College of Materials Science and Engineering,Beijing University of Technology  
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Abstract:
      Using WB powder and WC-Co powder as raw materials, the cemented carbides with different volume fraction of WB additives were prepared by hot isostatic pressing (HIP) method. Then, the phase constitution, microstructure and mechanical properties of the prepared cemented carbides have been studied. The results show that the super hard WCoB phase is formed by the reaction of WB and Co. With the decrease of Co phase, less WC grains were seperated.. With the increase of the WB addition, the prepared cemented carbides have a lower frictionScoefficients and a better wear resistance and hardness. When the WB addition is 30wt%, the hardness of 1900kg/mm2 can beattained. The abrasion loss of the sample is 1/10 of that of the WC-Co cemented carbide. However, the fracture toughness of the cemented carbide with WB addition is about 83%-91% of that of the conventional WC-Co cemented carbides.